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/*
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Copyright (C) 2000 Marco Ziech
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Copyright (C) 2000 Ross Combs (rocombs@cs.nmsu.edu)
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef INCLUDED_TGA_H
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#define INCLUDED_TGA_H
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#ifdef JUST_NEED_TYPES
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# include "compat/uint.h"
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#else
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# define JUST_NEED_TYPES
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# include "compat/uint.h"
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# undef JUST_NEED_TYPES
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#endif
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typedef struct {
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t_uint8 idlen; /* number of bytes in Field 6: 0==no id */
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t_uint8 cmaptype; /* colormap: 0==none, 1==included, <128==TrueVision, >=128==developer */
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t_uint8 imgtype; /* pixel format: <128==TrueVision, >=128==developer */
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t_uint16 cmapfirst; /* first entry offset */
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t_uint16 cmaplen; /* number of colormap entries */
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t_uint8 cmapes; /* size of a single colormap entry in bits, 15 forces 1 attribute bit, 32 forces 8 */
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t_uint16 xorigin; /* x coordinate of lower left hand corner with origin at left of screen */
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t_uint16 yorigin; /* y coordinate of lower left hand corner with origin at bottom of screen */
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t_uint16 width; /* width in pixels */
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t_uint16 height; /* height in pixels */
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t_uint8 bpp; /* bits per pixel, including attributes and alpha channel */
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t_uint8 desc; /* image descriptor: bits 0,1,2,3==num attribute bits per pixel, bit 4==horizontal order, bit 5==vertical order, bits 6,7==interleaving */
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/* field 6, optional */
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/* field 7, colormap data in ARGB, optional, entries are (min(cmapes/3,8)*3+7)/8 bits wide */
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t_uint8 *data;
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/* field 9, developer area, optional */
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/* field 10, extension area, optional */
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t_uint32 extareaoff; /* extension area offset, 0==none */
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t_uint32 devareaoff; /* developer area offset, 0==none */
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/* magic, null terminated */
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} t_tgaimg;
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typedef enum {
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tgaimgtype_empty=0,
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tgaimgtype_uncompressed_mapped=1,
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tgaimgtype_uncompressed_truecolor=2,
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tgaimgtype_uncompressed_monochrome=3,
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tgaimgtype_rlecompressed_mapped=9,
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tgaimgtype_rlecompressed_truecolor=10,
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tgaimgtype_rlecompressed_monochrome=11,
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tgaimgtype_huffman_mapped=32,
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tgaimgtype_huffman_4pass_mapped=33
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} t_tgaimgtype;
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typedef enum {
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tgadesc_attrbits0=1,
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tgadesc_attrbits1=2,
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tgadesc_attrbits2=4,
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tgadesc_attrbits3=8,
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tgadesc_horz=16,
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tgadesc_vert=32,
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tgadesc_interleave1=64,
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tgadesc_interleave2=128
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} t_tgadesc;
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typedef enum {
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tgacmap_none=0,
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tgacmap_included=1
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} t_tgacmap;
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typedef enum {
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RLE,
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RAW
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} t_tgapkttype;
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/* "new" style TGA allowing for developer and extension areas must have this magic at
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the end of the file */
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#define TGAMAGIC "TRUEVISION-XFILE."
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#include <stdio.h>
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extern t_tgaimg * new_tgaimg(unsigned int width, unsigned int height, unsigned int bpp, t_tgaimgtype imgtype);
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extern int getpixelsize(t_tgaimg const *img);
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extern t_tgaimg * load_tgaheader(void);
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extern t_tgaimg * load_tga(FILE *f);
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extern int write_tga(FILE *f, t_tgaimg *img);
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extern void destroy_img(t_tgaimg * img);
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extern void print_tga_info(t_tgaimg const * img, FILE * fp);
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#endif
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